Electrostatics Penner 1 v2

What does it mean when the electric field lines are close together?

• the field is positive
• the field is negative
• The field is strong
• the field is weak

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

At which location would a test charge feel the greatest force?

• A

• B

• C

• D

Two electrically neutral metal spheres, A and B, on insulating stands are placed in contact with each other. A negatively charged rod is brought near, but does not touch the spheres, as shown in the diagram below. How are the spheres now charged?

• A is positive and B is positive.
• A is negative and B is positive.
• A is positive and B is negative.
• A is negative and B is negative.

Which net charge could be found on an object?

• 4.8 x 10^-19 C
• 1.8 x 10^-19 C
• 3.0 x 10^-19 C
• 2.8 x 10^-19 C

Tags

NGSS.HS-PS2-4

Electrostatic force F exists between two point charges. If the both charges are doubled, the force between the charges will be

• F
• 4F
• 2F
• F/4

Tags

NGSS.HS-PS2-4

which is the field for opposite charges

• 
• 
• 
• 

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

The diagram above shows three neutral metal spheres, x, y, and z, in contact and on insulating stands. Which diagram best represents the charge distribution on the spheres when a positively charged rod is brought near sphere x, but does not touch it?

• 
• 
• 
• 

A region of space contains a uniform electric field, directed toward the right, as shown in the figure. Which statement about this situation is correct?

• The potential at point A is the highest, the potential at point B is the second highest, and the potential at point C is the lowest.
• The potential at points A and B are equal, and the potential at point C is lower than the potential at point A.
• The potential at all three locations is the same.
• The potentials at points A and B are equal, and the potential at point C is higher than the potential at point A.

The electric potential at a distance of 4 m from a certain point charge is 200 V relative to infinity. What is the potential (relative to infinity) at a distance of 2 m from the same charge?

• 600 V
• 50 V
• 200 V
• 400 V

Tags

NGSS.HS-PS2-4

How much work must we do on an electron to move it from point A, which is at a potential of +50V, to point B, which is at a potential of -50 V, along the semicircular path shown in the figure? Assume the system is isolated from outside forces. (e = 1.60 × 10^-19 C)

• 1.60 × 10^-17 J
• -1.6 J
• 1.6 J
• -1.60 × 10^-17 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-5